Surgical needle



May 14, 1935. G, E, TORNSJO 2,001,638

SURGICAL NEEDLE Original Filed Nov. 14, 1952 Patented May 14, 1935 Y r1;.UNirruSpur-S PATENTOFFICE SURGICAL `NEEDLE Gustar Elof Tornsjo,Columbia, Mo., assignor to Research Foundation, Inc., Columbia, Mo., acorporation of Missouri Application November 14, 1932, Serial No.642,637 f Renewed March 14, 1935 4 Claims. ((21.y 12s-347) Thisinvention is a noVel improvement in but said end being beveled andsharpened as at surgical needles particularly adapted for taking i topierce the nesn. The inner member 3 has the internal pressures of theintra-pleural i' a transverse opening 5 therethrough adapted to othercavities of a patient, the needle having register with the perforations`2 in the outer means for Cutting through the esh and means member I inone position. The inner member 5 Operable to open a passage through theneedle 3 carrying. the skin piercing pointl 4 projects to a suitablepressure recording apparatus, beyond the end of the outer member I whileWhereby by using tWO such needles, injeeted into piercing the iiesh, andwhen so projected the the respective intra-pleural cavities between theholes 5 and 2 in the two members are cut of lungs and the Chest Walls atboth sides of a register. When however the needle has been 10 patient,the pressures in both cavities may be injected into the patient theinner member 3 is reeordedadjusted as hereinafter described to retractthe The needles may be connected by rubber tubsharp end 4 within theouter member I, to preing with the apparatus for graphically recordingvent injury to the; patient, and to bring the such pressures fordetermining the differences in perforetions 5 and 2 into register, theinner 15 pressures. Also the needles may be used in member 3 having abore 6 extending from the determining the pressures in cavities otherthan perferatiens 5 to the inner `end thereof and the intra-pleuralCaVities of a patientleading into a duct I in a lateral extension 8Other minor objeets of the inVention Will be to which is connected acombined valve and hereinafter set forth. hose coupling member 9connected with hose H 20 I will explain the invention With reference to'(Fig. 1).y Preferably the inner end of the outer the accompanyingdrawing Whieh illustrates One member I is enlarged as at I a and has abayonet praetleal embodiment thereof to enable others slot I0 thereinadapted to receive a bayonet lug familiar with the art to adopt and usethe same; on the inner member 3, the slot l0 being of and Will summarizein the Claims the noVe1 such length that when the bayonet lug II is 25features of construction, and novel combinations et the inner end 0f the5101; lo the Cutting point of parts, for which protection is desired. 4Wi11 be projected beyond the outer member I In said drawing: the properamount. The bayonet slot I0 has Fig- 1 is a VieW showing needles appliedto a lateral branch Illa receiving the lug Il, inset both intra-pleuralCaVities of a patient. from the end of the slot permitting rotation of30 Fig- 2 is an enlarged elevation oi a needle the inner member 3 withinthe outer member I detached. to retract the cutting end 4, and. bringthe Fig. 3 is a section through the inner member periorations 5 and 2into register, and establish of the needle. communication to thecombined valve and hose Fig- 4 is a Seetion through the outer memberconnecting member 9. On the outer member I 35 of the needle. is anadjustable depth gauge consisting of a AS Shown in Fg- 1 the needles Nforming plate I2 having a hub I3 provided with a set the subject matterof the present application Screw |4 whereby the penetrating depth of theare shown applied to the intra-pleural cavities needle N can beadjusted, Said plate I2 having between the lungs and chest Walls at bothsides slots I2a at each end for attachment of the straps 40 of thepatient P. In practice the needles would which hold the needle to; thepatient y be connected around the back of the patient by In use the hoseSections H Comected 'to the e l i n n te r an me ast C Strap a d C0 necd aC OSS the pressure recorder and carrying the needles N chest of thepatient by an elastic strap to allow are inserted into the intra-pleuralspacesin the for chest expansmn and retraction of the pat1ent patient.at each Side of his chest, and held in .n

While breathing Without changing the positions place by means ofsuitable straps having means of the needles.

The needles N are Connected by hose sections to allow for alternateexpansion and retraction H to a recording apparatus (not shown) of anyof the Chest during breathing Without Shifting desired type. theposition of the needles. The pressures need 50 Each needle (Figs. 2, 3,4) preferably comonly be recorded for a few minutes, and during prises aslender tubular outer member I having the interval in which thepressures are being ,apertures 2 adjacent its outer end, and beingrecorded any pressure fluctuations in the intraopen at its outer end.Within the outer member pleural spaces in the patient will be recorded;

I is an inner member 3 closed at its outer end also any fluctuations inpressure after introduc- 55 tion of any substance, such as fluid intothe 2. A surgical needle, comprising an outer tubular member having aperforation; an "finner tubular member having a flesh cutting'knifeandhaving a perforation adapted to register with that in the outer member;and means for causing the perforations to come into and out of register.

3. A surgical needle, comprising `an outer'V tubular member having aperforation; an inner tubular member having a flesh cutting kniferandhaving a perforation adapted to register with that in the outer member;means whereby in one position of the inner member the knife will projectbeyond the outer member and the perforations will be out of register,and in another position of the inner member the knife will be retractedwithin the outer member and the perforations will register.

4. AI surgical needle, corrprising'v 'an outer tubular member having aperforation; an inner tubular member having a flesh cutting knife fandhaving a perforation adapted to register with that in the outer member;a bayonet pin on the inner member engaging a bayonet slot in the outermember whereby in one position of the pin in the slot the knife willproject beyond the outer Amember and the perforations Will-be out ofregister, and in another position the knife will be retracted within theouter member and the perforations will register.

GUSTAF ELOF TORNSJO.A 20

